Dr Tahera explains that the topical version of GHK Cu and how it supports skin repair and rejuvenation. This is the cream based approach. Injectables? We'll cover that next. Because understanding your options matters. GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms Epigenetic mechanisms activated by GHK Cu increase skin collagen density in clinical trial EurekAlert!